Right –hand Rule #2
Wires are coiled, the individual field
lines come together which strengthens the overall magnetic field. Right-hand
rule for a coil is different from a straight conductor, when determining the
direction of the electromagnetic force from the current. The process
used to predict the relationship between the direction of conventional flow in
a coil and the direction of the magnetic field is known as the Right-Hand Rule
#2.
(1)
Right –hand Rule
#2
1. For you to see the way the magnetic field
moves for a coil with conventional current flow, you must clutch the coil with
your right hand.
2. Fingers must be curled in the direction of the
conventional or positive current.
3. Direction of the magnetic field in the coil is
the direction wherein the thumb points towards.
4. The thumb points to the North end of the
electromagnet
The magnetic force can be changed by
various factors such as the current in the coil. More current flow causes the
field strength to increase. In addition, the more turns in the coil results in
greater field strength. The type of material in the coil adjust the magnetic
force, the more ferromagnetic, the stronger the magnet. The smaller the
diameter of the coil results in a stronger magnetic field.
Bibliography
1. (2008). Oval
Tech. (2008). [Web Photo]. Retrieved from
http://www.ovaltech.ca/index.html
